Craftsman 917.27499 Lawn Mower User Manual


 
L,H. Screws
Electric
Mandrel Idler Clutch
Pulley
Mandrel
Mower
D(hte Belt
Belt
Keepers
Boltin
TO REPLACE MOWER BLADE DRIVE
BELT
Pork the tractor onlevel surface. Engage
parking brake.
1. Remove mower drive belt (See "TO
REPLACE MOWER DRIVE BELT" in
this section of this manual).
2. Remove mower (See "TO REMOVE
MOWER" in this section of this
manual).
3. Remove screws from R.H. mandrel
cover and remove cover. Unhook
spring from bolt on mower housing.
4. Carefully roll belt off R,H. mandrel
pulley.
5. Remove belt from center mandrel
pulley, idler pulley, and L.H. mandrel
pulley.
6. Remove any dirt or grass which may
have accumulated around mandrels
and entire upper deck surface.
7. Check secondary idler arm and idler
to see that they rotate freely.
8. Be sure spring is hooked in secondary
idler arm and sway-bar bracket.
9. Install new belt in lower groove of L.H.
mandrel pulley, idler pulley, and
center mandrel pulley as shown.
10. Roll belt over R.H. mandrel pulley.
Make sure belt is in all grooves
properly.
11.Reconnect spring to bolt in mower
housing and reinstall R.H. mandrel
cover.
12. Reinstall mower to tractor (See
"INSTALL MOWER AND DRIVE
BELT" in the Assembly section of this
monual).
Reassemble mower drive belt (See
,,TOREPLACE MOWER DRIVE BELT"
in this section of this manual).
MowerBlade
L.H, DriveBelt Center
Mandrel_f._-.._\ Maln_el R.H.Mandrel
:er
Secon_
IdlerArm _ (__[1_'_<_ _J
SrwaYkBtar id_r_/ // \
Pulley
TO ADJUST ATrACHMENT CLUTCH
The electric clutch should provide years
of service. The clutch has a built-inbrake
that stops the puUeywithin 5 seconds.
Eventually, the internal brake will wear
which may cause the mower blades to
not engage, or,to not stop as required.
Adjustments should be made by a Sears
or other qualified service center.
1, Make sure attachment clutch and
ignition switches are in "OFF" position.
2. Adjust the three nylon Iocknuts until
space between clutch plate and rotor
measures .012" at all three slot
locations cut in the side of brake plata.
NOTE: After installing a new electric
clutch, runtractorat fullthrottle and
engage and disengage electric clutch 10
cycles to wear in clutch plate.
Rotor
/ cotehP Ot2
Nylon_ __
Loeknut(3_ B"_rake
_--_. Plate
TO ADJUST BRAKE
Your tractor is equippedwith an adjustable
brake systemwhich is mounted on the left
side ofthe transaxfe.
If tractorrequires morethan six (6) feet
stoppingdistance at high speed in highest
gear on a level dry concrete or paved
surface, then brake must be adjusted.
1. Depress clutch/Drake pedal and
engage parking brake.
2. Measure distance between brake
operating arm and nut "A" on brake rod.
3. Ifdistance is otherthan 1-3/4", loosen
jam nut and turnnut "A" until distance
becomes 1-3/4". Retighten jam nut
against nut "A".
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